CN102942766A - Preparation method of wear-resistant epoxy resin material - Google Patents
Preparation method of wear-resistant epoxy resin material Download PDFInfo
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- CN102942766A CN102942766A CN2012105187072A CN201210518707A CN102942766A CN 102942766 A CN102942766 A CN 102942766A CN 2012105187072 A CN2012105187072 A CN 2012105187072A CN 201210518707 A CN201210518707 A CN 201210518707A CN 102942766 A CN102942766 A CN 102942766A
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Abstract
The invention provides a preparation method of a wear-resistant epoxy resin composite material. The wear-resistant epoxy resin composite material is prepared by compounding epoxy resin used as a base and paligorskite clay and carbon fibers used as synergic additives, wherein the paligorskite has a special structure, so that the mechanical properties and processability of the material can be effectively enhanced; and the carbon fibers have favorable heat conductivity, so that the heat produced by friction can be transferred in time, and the surface temperature of the material can be reduced, thereby reducing the surface wear extent of the material. Thus, the paligorskite clay and the carbon fibers are used as synergic additives, thereby effectively improving the wear resistance of the epoxy resin and enhancing the shock resistance and processability of the base; and the addition of the paligorskite clay and the carbon fibers can reduce the cost of the epoxy resin material. The invention widens the application range of the epoxy resin.
Description
Technical field
The invention belongs to technical field of composite materials, relate to a kind of preparation method of wear-resistant type epoxy resin composite material, relate in particular to a kind of with palygorskite, the carbon fiber preparation method as the wear-resistant type epoxy resin composite material of synergistic additives.
Background technology
Epoxy resin cured product generally has good electrical insulation capability, corrosion resistance nature and adhesive property etc.Compare with thermosetting resins such as resol, unsaturated polyester resins, Resins, epoxy has the performance of following excellence: cohesiveness is good, cure shrinkage is little, good electrical property, good, the easy modification of chemical stability, and is of many uses.But since its solidify after cross-linking density high, cause that internal stress is large, matter is crisp, and poor heat resistance, the high deficiency of frictional coefficient and limited the further application of Resins, epoxy.
In recent years, more researcher is attempting nanoparticle is used for the improvement of polymkeric substance frictional behaviour, low-down addition just can effectively reduce the wear rate of polymkeric substance, and by to treatment of packing, can effectively change frictional coefficient and the mechanical property of polymkeric substance.Polygorskite is because its special structure is a kind of first-selected filler that improves matrix material.Chinese patent CN102504672A discloses a kind of epoxy resin-based wear-resistant anticorrosive material, as matrix take Resins, epoxy, take nanometer palygorskite-aluminum oxide as filler, adopt ultra-sonic dispersion and mechanical blending technology to be prepared from, has excellent wear-and corrosion-resistant performance, and has good sticking power, therefore, can be used as compound coating and be applied in the component of machine material surface, improving the wear-and corrosion-resistant performance of component of machine, thereby prolong work-ing life of metallic element, but owing to using aluminum oxide to be synergist, its complicated process of preparation, although improve the wear resistance of epoxy resin-matrix, wear resisting property also can be undesirable.Chinese patent CN102391473A discloses a kind of preparation method of anhydride cured epoxy resin/palygorskite nanocomposite material, comprising: polygorskite is ground to form breeze; The polygorskite breeze is carried out calcining and activating to be processed; With Resins, epoxy heating liquefaction, add polygorskite and mix, stir; Add anhydride curing agent, after the gained mixture stirred the vacuumize degassing processing wait matrix material, significantly improve Resins, epoxy anhydride-cured toughness of material, significantly improve mechanical property and thermostability, this product generally is used for casting or packaging electronic, electric product and is heating and curing, but palygorskite improves wear resistance to matrix material contribution is not tested in this invention, and the wear resistance of matrix material.
Carbon fiber is through carbonization and graphitization processing and the micro crystal graphite material that obtains by organic fibre.It has axial strength, and modulus is high, without creep, resistance to fatigue is good, specific heat and electroconductibility are between nonmetal and metal, and thermal expansivity is little, good corrosion resistance, the density of fiber is low, therefore the advantages such as X ray perviousness, are used in the preparation composite conducting material as filler widely with carbon fiber, but at present not with carbon fiber, palygorskite as complex additive, Resins, epoxy is the open report that matrix prepares wearing composite material.
Summary of the invention
The objective of the invention is for problems of the prior art, a kind of preparation method of wear-resistant type epoxy resin composite material is provided.
The preparation method of wear-resistant type epoxy resin composite material of the present invention is take Resins, epoxy as matrix, and is compound and get as synergistic additives with palygorskite, carbon fiber.Its concrete preparation technology is as follows:
Resins, epoxy/palygorskite of the present invention/carbon fiber composite manufacture method of resistance to wearing is with Resins, epoxy heating liquefaction, after the thinner dilution, add toughner, after stirring, add palygorskite and carbon fiber, mix, add solidifying agent behind the Fruit storage, stir, again vacuumize processing, reverse mould, in 50 ~ 70 ℃ of baking ovens, solidify 12 ~ 24h, both;
The particle diameter of described palygorskite is 20 ~ 100nm, and its add-on is 1 ~ 9% of Resins, epoxy quality;
Carbon fiber is through carbonization and graphitization processing and the micro crystal graphite material that obtains by organic fibre.The add-on of carbon fiber is 1 ~ 9% of Resins, epoxy quality.
Described thinner is the mixed solution that has dimethylbenzene and propyl carbinol to form with the volume ratio of 1:2 ~ 1:4.
Described toughner is dibutyl phthalate, and its add-on is 0.2 ~ 0.8% of Resins, epoxy quality.
Resins, epoxy/palygorskite of the present invention/carbon-fibre composite utilizes the collaborative carbon fiber of palygorskite as additive, and polygorskite is because mechanical property and the processing characteristics of its special structure energy Effective Raise material; Carbon fiber can in time transmit fricative heat owing to having good thermal conductivity, reduces the material surface temperature, thereby reduces the abrasion loss of material surface.Therefore, palygorskite and carbon fiber are collaborative, not only can improve mechanical property and the processing characteristics of matrix, have effectively improved the wear resistance of Resins, epoxy simultaneously; In addition, the interpolation of palygorskite and carbon fiber has also reduced the cost of epoxide resin material, thereby has expanded the application of Resins, epoxy.
Below by concrete experiment wear resisting property and the machining property of Resins, epoxy/palygorskite of the present invention/carbon-fibre composite are measured.
1. wear resisting property
Examine the coefficient test 1.1 rub: carry out friction-wear test at the UMT-3MT frictional testing machines, loading force is 50N, and frequency is 3.3HZ, stroke 3mm, and antithesis Φ 10mm, test duration 10min, directly obtaining rubs examines coefficient.
Test result: and along with the increase of carbon fiber content, the average friction coefficient of matrix material also reduces gradually; Along with the increase of palygorskite content, the average friction coefficient of matrix material increases.When the add-on of palygorskite is 1 ~ 9%, when the add-on of carbon fiber was 1 ~ 9%, the average friction coefficient of matrix material was 0.04018～0.33500.The overall friction performance is than pure epoxy resin all be significantly improved (average friction coefficient of pure epoxy resin is 0.22802).
1.2 abrasion loss test: claim its quality with the rigorous analysis balance to the preparation sample respectively before and after rub(bing)test, its mean value is got in each weighing 5 times, relatively the average abrasion amount.
Test result: the average abrasion amount of epoxy resin composite material is 0.00121g ~ 0.00474g.The wear resistance of epoxy resin composite material increases than pure epoxy resin, and (abrasion loss of pure epoxy resin is 0.00126g.）
2. machining property
2.1 shock resistance: matrix material is prepared the batten of 80mm * 10mm * 4mm according to GB " GB/T 2571-1995 ", carry out the shock resistance test.
Test result: average impact resistance can be 30.6J/m ~ 68.7J/m, relative pure epoxy resin, the resistance to impact shock that has improved 10.12% ~ 39.64%(pure epoxy resin is 49.2J/m).
2.2 flexural strength: matrix material is prepared the batten of 80mm * 10mm * 6mm according to GB " GB/T 2571-1995 ", carry out the bending resistance test.
Flexural strength is 47.49 ~ 60.65Mpa, owing to having added inorganic nano-particle, and sample flexural strength all decrease (flexural strength of pure epoxy resin is 63.78).
Comprehensive above-mentioned all kinds of performances, the addition that the present invention chooses palygorskite is 1 ~ 9%, when the addition of carbon fiber was 1 ~ 9%, the antiwear epoxy resin matrix material that obtains had preferably machining property and wear resistance.
Embodiment
Describe below by the preparation and property of specific embodiment to modified abrasion resistant epoxy resin composite material of the present invention.
Embodiment 1
Get in the round-bottomed flask that 5g Resins, epoxy joins 50mL, place 50 ℃ of oil baths to liquefy.Add thinner (dimethylbenzene 0.25mL, propyl carbinol 0.50mL), stir 10min; Then add toughner butylene phthalate 0.049 mL, stir 10min; The palygorskite, the 0.45g carbon fiber that add 0.05g stir 40min; Vacuumize 10min; Add T-31 solidifying agent 1.25g, vacuumize 2min, pour mould into, in 60 ℃ of baking ovens, solidify 24h, both got epoxy resin composite material.
The wear resisting property test: on average rubbing and examining coefficient is 0.04018, and the average abrasion amount is that the 1.23mg shock resistance is 68.70J/m, and flexural strength is 57.97Mpa.
Embodiment 2
Get in the round-bottomed flask that 5g Resins, epoxy joins 50mL, place 50 ℃ of oil baths to liquefy.Add thinner (dimethylbenzene 0.20mL, propyl carbinol 0.55mL), stir 10min; Then add toughner butylene phthalate 0.013 mL, stir 10min; The palygorskite, the 0.35g carbon fiber that add 0.15g stir 40min; Vacuumize 10min; Add T-31 solidifying agent 1.25g, vacuumize 2min, pour mould into, in 70 ℃ of baking ovens, solidify 12h, both got epoxy resin composite material.
The wear resisting property test: on average rubbing and examining coefficient is 0.05849, and the average abrasion amount is 2.42mg, and shock resistance is 50.27J/m, and flexural strength is 58.06Mpa.
Embodiment 3
Get in the round-bottomed flask that 5g Resins, epoxy joins 50mL, place 50 ℃ of oil baths to liquefy.Add thinner (dimethylbenzene 0.21mL, propyl carbinol 0.54mL), stir 10min; Then add toughner butylene phthalate 0.035mL, stir 10min; The palygorskite, the 0.25g carbon fiber that add 0.25g stir 40min; Vacuumize 10min; Add T-31 solidifying agent 1.25g, vacuumize 2min, pour mould into, in 60 ℃ of baking ovens, solidify 24h, both got epoxy resin composite material.
The wear resisting property test: on average rubbing and examining coefficient is 0.1054, and the average abrasion amount is 3.57mg, and shock resistance is 48.56J/m, and flexural strength is 47.49Mpa.
Embodiment 4
Get in the round-bottomed flask that 5g Resins, epoxy joins 50mL, place 50 ℃ of oil baths to liquefy.Add thinner (dimethylbenzene 0.15mL, propyl carbinol 0.60mL), stir 10min; Then add toughner butylene phthalate 0.027 mL, stir 10min; The palygorskite, the 0.15g carbon fiber that add 0.35g stir 40min; Vacuumize 10min; Add T-31 solidifying agent 1.25g, vacuumize 2min, pour mould into, in 60 ℃ of baking ovens, solidify 24h, both got epoxy resin composite material.
The wear resisting property test: on average rubbing and examining coefficient is 0.3350, and the average abrasion amount is 1.21mg, and shock resistance is 36.60J/m, and flexural strength is 60.65Mpa.
Embodiment 5
Get in the round-bottomed flask that 5g Resins, epoxy joins 50mL, place 50 ℃ of oil baths to liquefy.Add thinner (dimethylbenzene 0.23mL, propyl carbinol 0.52mL), stir 10min; Then add toughner butylene phthalate 0.019 mL, stir 10min; The palygorskite, the 0.05g carbon fiber that add 0.45g stir 40min; Vacuumize 10min; Add T-31 solidifying agent 1.25g, vacuumize 2min, pour mould into, in 65 ℃ of baking ovens, solidify 18h, both got epoxy resin composite material.
The wear resisting property test: on average rubbing and examining coefficient is 0.2145, and the average abrasion amount is 4.74mg, and shock resistance is 56.52J/m, and flexural strength is 49.933Mpa.
Carbon fiber in the various embodiments described above is bought from Lanzhou Hao Shi carbon fibre material company limited, is common carbon fiber.
Claims (9)
1. the preparation method of wear-resistant type epoxy resin composite material is take Resins, epoxy as matrix, and is compound and get as synergistic additives with palygorskite, carbon fiber.
2. the preparation method of wear-resistant type epoxy resin composite material as claimed in claim 1 is characterized in that: described carbon fiber is through carbonization and graphitization processing and the micro crystal graphite material that obtains by organic fibre.
3. the preparation method of wear-resistant type epoxy resin composite material as claimed in claim 2, it is characterized in that: the consumption of described carbon fiber is 1 ~ 9% of Resins, epoxy quality.
4. the preparation method of wear-resistant type epoxy resin composite material as claimed in claim 1, it is characterized in that: the granularity of described palygorskite is 20 ~ 100nm.
5. the preparation method of wear-resistant type epoxy resin composite material as claimed in claim 4, it is characterized in that: the consumption of described palygorskite is 1 ~ 9% of Resins, epoxy quality.
6. such as the preparation method of any wear-resistant type epoxy resin composite material as described in the claim 1 ~ 5, it is characterized in that: with Resins, epoxy heating liquefaction, after the thinner dilution, add toughner, after stirring, add palygorskite, carbon fiber, mix, Fruit storage, add solidifying agent, stir, again vacuumize processing, reverse mould solidifies 12 ~ 24h and both got in 50 ~ 70 ℃ of baking ovens.
7. the preparation method of wear-resistant type epoxy resin composite material as claimed in claim 6 is characterized in that: described thinner is the mixed solution that is formed with the volume ratio of 1:2 ~ 1:4 by dimethylbenzene and propyl carbinol.
8. the preparation method of wear-resistant type epoxy resin composite material as claimed in claim 6, it is characterized in that: described toughner is dibutyl phthalate.
9. the preparation method of wear-resistant type epoxy resin composite material as claimed in claim 8, it is characterized in that: the add-on of described toughner is 0.2 ~ 0.8% of Resins, epoxy quality.
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Cited By (5)
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| CN105153646A (en) * | 2015-07-31 | 2015-12-16 | 苏州天健竹业科技有限公司 | Wear-resistant composite material for bicycle and preparation method thereof |
| CN105175999A (en) * | 2015-09-18 | 2015-12-23 | 颍上县龙裕扬工贸有限公司 | Plastic handle and projective jacket composition for baby bottle and preparation method of composition |
| CN105694365A (en) * | 2016-03-01 | 2016-06-22 | 武汉理工大学 | Bulk molding compound for manufacturing automotive brake piston and preparation method thereof |
| CN106433033A (en) * | 2016-09-09 | 2017-02-22 | 天津工业大学 | Preparation technology for material for promoting frictional wear performance of epoxy resin under synergic effect of inorganic particles and carbon fibers |
| CN114479359A (en) * | 2021-09-15 | 2022-05-13 | 中国科学院兰州化学物理研究所 | Fiber and red mud jointly modified epoxy resin composite material and preparation method thereof |
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| US20030008125A1 (en) * | 2001-07-05 | 2003-01-09 | Curt Delanoy | Composite carbon fiber material and method of making same |
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| US20030008125A1 (en) * | 2001-07-05 | 2003-01-09 | Curt Delanoy | Composite carbon fiber material and method of making same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153646A (en) * | 2015-07-31 | 2015-12-16 | 苏州天健竹业科技有限公司 | Wear-resistant composite material for bicycle and preparation method thereof |
| CN105175999A (en) * | 2015-09-18 | 2015-12-23 | 颍上县龙裕扬工贸有限公司 | Plastic handle and projective jacket composition for baby bottle and preparation method of composition |
| CN105175999B (en) * | 2015-09-18 | 2018-01-23 | 汕头市德丰盛妇幼用品有限公司 | A kind of baby bottles plastic handles and jacket composition and preparation method thereof |
| CN105694365A (en) * | 2016-03-01 | 2016-06-22 | 武汉理工大学 | Bulk molding compound for manufacturing automotive brake piston and preparation method thereof |
| CN105694365B (en) * | 2016-03-01 | 2018-06-26 | 武汉理工大学 | One kind is used to make automotive brake piston tubular molding compound and preparation method thereof |
| CN106433033A (en) * | 2016-09-09 | 2017-02-22 | 天津工业大学 | Preparation technology for material for promoting frictional wear performance of epoxy resin under synergic effect of inorganic particles and carbon fibers |
| CN114479359A (en) * | 2021-09-15 | 2022-05-13 | 中国科学院兰州化学物理研究所 | Fiber and red mud jointly modified epoxy resin composite material and preparation method thereof |
| CN114479359B (en) * | 2021-09-15 | 2023-02-21 | 中国科学院兰州化学物理研究所 | Fiber and red mud jointly modified epoxy resin composite material and preparation method thereof |
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